CollimateScope

CollimateScope turns your smartphone into a precision collimation aid for Newtonian reflector telescopes. Mount your phone over your Cheshire eyepiece or collimation cap using a phone adapter, and use the on-screen reticle to align your secondary and primary mirrors quickly and accurately.

Watch the full collimation tutorial on YouTube before purchasing to see exactly how it works:
https://www.youtube.com/watch?v=kHTxLxtN4CU

— HOW IT WORKS —

Insert your phone into the focuser using a phone-to-eyepiece adapter. CollimateScope displays a live camera feed with a configurable reticle overlay. Use the circles and crosshair to align your secondary and primary mirrors visually — no dedicated hardware required.

— FEATURES —

- Configurable red outer circle for edge ring alignment
- Green inner circle for secondary mirror alignment
- Yellow crosshair for primary mirror center dot alignment
- Cyan and magenta circles for primary mirror reflection alignment
- Fine-tune arrows on every slider for precision adjustments
- Manual camera controls: ISO, shutter speed, focus, and zoom
- Save and load named presets for different telescopes
- Settings persist between sessions — pick up exactly where you left off
- Built-in step-by-step onboarding tutorial
- Screen stays on while collimating

— WHAT YOU NEED —

- A Newtonian reflector telescope
- A phone-to-eyepiece adapter
- A Cheshire eyepiece or collimation cap

— COMPATIBLE TELESCOPES —

Any Newtonian reflector telescope with a standard 1.25" or 2" focuser, including Dobsonians and Newtonian astrographs.

— NO ADS. NO SUBSCRIPTIONS. NO DATA COLLECTED —

CollimateScope is a one-time purchase. No internet connection required to use the app. No personal data is collected or transmitted. All settings are stored locally on your device.

Clear skies.

Recent changes:
- Now available to switch languages in Settings, Below are the Supported languages :

English
Español
Français
Deutsch
Italiano
Polski
Nederlands
简体中文
繁體中文
日本語
한국어
Bahasa Indonesia
Filipino

- Screenshot button

Thanks for using CollimateScope! Clear skies.